This is a preview of some upcoming projects. First, I’m still interested in a project that requires no custom hardware development, so when I saw the new 4-channel JAB4 DSP/Bluetooth amp from Wondom, I couldn’t resist. I’ve got a JAB4 board running in one of those PGA2311 preamp cases with an ESP32 CPU board for control and a Nextion display. I still need to deal with the auto power-down feature of the JAB4, and I’ve got lots of code to write for the Nextion display, but this is starting to look like a really nice solution for active speakers.
There will also be an end table version using a highly modified case that I ordered from Sam’s for about $50. This Bluetooth end table will be stereo (speakers on both sides) with an active crossover and bass enhancement that you can control from your cell phone. Plus, it will have a wireless charger built in the top. The drivers are ones I’ve been intrigued by for a while: the glass-diaphragm drivers from BDNC (Speaker Drivers – BDNC (Holding) Limited (newbdnc.com). This will go in our greenhouse so my wife can keep her “babies” entertained (she’s got turnips, peas and spinach shoots popping up already).
![DecorTech Rectangular End Table with Bluetooth Speaker and USB Charging Port, Walnut](https://i0.wp.com/i5.walmartimages.com/asr/9abebf6f-fc96-4dea-97c3-65a813e5ff1a.b220481b6f2f8d5cc8328823236f9623.jpeg?resize=410%2C410&ssl=1)
I’m hoping these projects will move along quickly, as I’m anxious to extend the ADAU1701 libraries to control the ADAU145X/ADAU146X, and I’ve got plans for a second-generation line array amp. We’ve had a lot of snow and many days with temperatures in single digits, and these are all good “software season” projects.
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